05000416/FIN-2017012-01
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Finding | |
|---|---|
| Title | Failure to Correct Instrument Calibration Process in a Timely Manner |
| Description | The inspectors identified a violation of 10 CFR 20.1501(c) for the failure to properly calibrate installed radiation monitors using industry accepted calibration methods and tolerances. Specifically, since January 2012, the licensee failed to properly calibrate the following radiation monitors: main steam line, containment high range, and the drywell high range. This violation was originally entered into the licensees corrective action program in March 2015 as Condition Report CR-GGNS-2015-01832. However, in 2017, inspectors determined that subsequent to 2015, the licensee failed to implement corrective actions to properly calibrate the instruments. The licensee entered this repetitive issue into their corrective action process as Condition Report CR-GGN-2017-06826. The failure to properly calibrate radiation monitors is a performance deficiency. The performance deficiency is more than minor because it is associated with the cornerstone attribute of plant instrumentation and adversely affects the cornerstone objective to ensure adequate protection of employee health and safety during routine civilian nuclear reactor operation and is therefore a finding. Specifically, the failure to properly calibrate radiation monitors impacts the licensees ability to assess dose rates. Using Inspection Manual Chapter 0609, Appendix C, Occupational Radiation Safety Significance Determination Process, dated August 19, 2008, the inspectors determined the finding to be of very low safety significance because it was not an as low as reasonably achievable (ALARA) issue, there was no overexposure or substantial potential for overexposure, and the licensees ability to assess dose was not compromised. This finding has a cross-cutting aspect in the resources component of the Problem Identification and Resolution area because the licensee did not ensure that effective corrective actions were implemented to address issues in a timely manner commensurate with the safety significance [P.3]. |
| Site: | Grand Gulf  |
|---|---|
| Report | IR 05000416/2017012 Section 2RS5 |
| Date counted | Sep 30, 2017 (2017Q3) |
| Type: | Violation: Green |
| cornerstone | Pr Safety |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71124.05 |
| Inspectors (proximate) | L Carson N Greene J O'Donnell T Go S Money H Gepfordl Carsonn Greene J O'Donnell T Go H Gepford |
| Violation of: | 10 CFR 20.1501, Surveys and Monitoring |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
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Finding - Grand Gulf - IR 05000416/2017012 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Grand Gulf) @ 2017Q3
Self-Identified List (Grand Gulf)
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